Lennox says: Our x8309 is now a merv 11 replacing our merv 10Our HC11 filters remove up to 85% of particles such as dust, dirt, and mold spores down to 3 microns and have no ozone emissions— a known lung irritant.

**NOTICE**Lennox is converting their MERV 10 filters to MERV 11. The same part #'s will be used. We are receiving batches of both still so you may receive MERV 10 or 11.

The customer service representative went out of her way to make my order outstanding by finding me the least expensive shipping cost. I did the cost analysis and my order was cheaper than Amazon. It feels good to order from a small company which prides itself on customer service and satisfaction.

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December 5, 2017

Reviewer:
Dave Cobb from De Pere, WI United States

Order was processed quickly and was for the exact product. I will be using your company for my next purchase.

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EXACTLY WHAT I NEEDED -

June 19, 2017

Reviewer:
ANN MORRISON from Rochester Hills, MI United States

FITS LIKE A CHARM -

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Just what my furnace needs...

February 2, 2017

Reviewer:
George from Roanoke, VA United States

Easy to order. Quick shipping. Just what my furnace needs.

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Lennox x8309 MERV 11 Expandable Filter

June 24, 2016

Reviewer:
Michael Gallagher from Sobieski, WI United States

Quick ship, great communication, & I appreciate your work to reduce shipping cost.